/**
 * Copyright 2016 Yahoo Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.yahoo.pulsar.broker.web;

import java.io.File;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response.Status;

/**
 * Web resource used by the VIP service to check to availability of the Pulsar broker instance.
 */
@Path("/status.html")
@NoSwaggerDocumentation
public class VipStatus extends PulsarWebResource {

    @GET
    @Context
    public String checkStatus() {
        String statusFilePath = pulsar().getStatusFilePath();

        File statusFile = new File(statusFilePath);
        if (statusFile.exists()) {
            return "OK";
        } else {
            throw new WebApplicationException(Status.NOT_FOUND);
        }
    }
}
